stambaugh



v UNITED STATES.

PATENT OFFICE.

DAVID F. STAMBAUGH, OF ST. LOUIS, MISSOURI.

BED-BOTTOM.

SPECIFICATION forming part of Letters Patent No. 327,611, dated October6, 1885.

Application filed August 21, 1884. Serial Karma. (NomodelJ To all whomit may concern:

Be it known that 1, Dawn F. STAMBAUGH, a citizen of the United States,residing at St. Louis, in the county of St. Louis and State of Missouri,have invented certain new and useful Improvements in Bed-Bottoms, ofwhich the following is a specification, reference be ing had therein tothe accompanying drawing. 4

My invention relates to certain improve mentsiu spring bed-bottoms, andis designed, objectively, to prodncea device that shall accommodateitself easily and quickly to every motion of the occupant, at the sametime be ing simple, strong, and not liable to get'out of order.

In describing the device reference ishad to the annexed drawing,representing a partial plan view of the bed-bottom.

A designates the sides of a frame, having end pieces, B, preferably setat a slight angle to the horizontal, and cross-pieces 0, connecting thesaid sides. At each end of the frame, secured to the pieces B, are aseries of spiral springs, D, respectively sustaining the ends of the webof chains E, which are each composed of a series of links. These linksare U-shaped, and have the bend or base indented, as shown at F, so thatthe links, when all secured together, will preserve their form,-wl1ich'tends toward the rectangular, giving thereby a large bearingsurface.Between each two spirals D are links G, which are connected to the endpieces, B, and are loosely secured to the end links of the chains, 50that the said spirals may have a restricted play, but not sufiicient todistort or strain them. p

The cross-pieces C each support, a series of springs, H, on the tops ofwhich rest the chains E, the said springs being connected to each otherand to the chains by short links I.

The chains of the web are held normally equidistant from each other byspirals K, which.

extend entirely across the said web. These cross-spirals allow thechains to yield readily It is evident that the bedbottorn will yieldtopressure from any direction, and therefore be ve'ry comfortable to anoccupant. The chains receivea mattress without pressing into it,andsupportit-perfectly. Thelinks,thongh l shown as rectangular or U-shaped,may be of 60 other forms. The complete device is simple, light-er thanslats, and cheaply and easily constructed. Having described the device,what I claim 1s- A spring bed-bottom consisting of a frame havingcross-pieces supporting spiral springs, a 'web of flat-linked chainsconnected to the frame by spring-coils having a restricted play, thesaid chains resting on the spiral springs and connected one to the otherby transverse coils, and coils connecting the spiral springs totheframe, the several parts being connected and operating substantiallyas and for the purpose specified.

In testimony whereof I affix my signature in

